/*
 * @Author: wfl
 * @Date: 2018-11-27 18:08:05
 * @Last Modified by: wfl
 * @Last Modified time: 2019-01-29 17:16:48
 * @  获取当前年月日星期  + 农历年 日期
 */
const showCal = function (nowDate) {
  nowDate = nowDate || ''
  const today = new Date(nowDate)
  const dataArr = {}
  const jieri = ''
  const weeks = ['星期日', '星期一', '星期二', '星期三', '星期四', '星期五', '星期六']

  dataArr.ymd = `${today.getFullYear()}年${today.getMonth() + 1}月${today.getDate()}日`
  dataArr.week = `${weeks[today.getDay()]}`
  const calendar = new Date(nowDate)
  const month = calendar.getMonth()
  const date = calendar.getDate()

  // if ((month == 0) && (date == 1)) jieri = "元旦";
  // if ((month == 1) && (date == 13)) jieri = "除夕";
  // if ((month == 1) && (date == 14)) jieri = "春节/情人节";
  // if ((month == 2) && (date == 1)) jieri = "国际海豹日";
  // if ((month == 2) && (date == 8)) jieri = "国际劳动妇女节/中国保护母亲河日";
  // if ((month == 2) && (date == 12)) jieri = "植树节";

  // if ((month == 3) && (date == 1)) jieri = "愚人节";
  // if ((month == 3) && (date == 5)) jieri = "清明节";
  // if ((month == 4) && (date == 1)) jieri = "国际劳动节";
  // if ((month == 4) && (date == 9)) jieri = "母亲节";

  // if ((month == 5) && (date == 1)) jieri = "国际儿童节";
  // if ((month == 5) && (date == 26)) jieri = "国际禁毒日";

  // if ((month == 7) && (date == 1)) jieri = "建军节";
  // if ((month == 7) && (date == 15)) jieri = "日本无条件投降日/世纪婚纱日";
  // if ((month == 7) && (date == 16)) jieri = "七夕情人节";

  // if ((month == 9) && (date == 20)) jieri = "世界厨师日";
  // if ((month == 9) && (date == 22)) jieri = "世界传统医药日";
  // if ((month == 9) && (date == 24)) jieri = "联合国日/世界发展信息日";
  // if ((month == 9) && (date == 25)) jieri = "世界骨质疏松日/抗美援朝纪念日/环卫工人节";
  // if ((month == 9) && (date == 31)) jieri = "世界勤俭日/中国男性健康日";

  // if ((month == 11) && (date == 24)) jieri = "平安夜";
  // if ((month == 11) && (date == 25)) jieri = "圣诞节";

  /* 农历部分 */

  let CalendarData = new Array(100)
  const madd = new Array(12)
  const tgString = '甲乙丙丁戊己庚辛壬癸'
  const dzString = '子丑寅卯辰巳午未申酉戌亥'
  const numString = '一二三四五六七八九十'
  const monString = '正二三四五六七八九十冬腊'
  const weekString = '日一二三四五六'
  const sx = '鼠牛虎兔龙蛇马羊猴鸡狗猪'
  let cYear, cMonth, cDay, TheDate
  CalendarData = [0xA4B, 0x5164B, 0x6A5, 0x6D4, 0x415B5, 0x2B6, 0x957, 0x2092F, 0x497, 0x60C96, 0xD4A, 0xEA5, 0x50DA9, 0x5AD, 0x2B6, 0x3126E, 0x92E, 0x7192D, 0xC95, 0xD4A, 0x61B4A, 0xB55, 0x56A, 0x4155B, 0x25D, 0x92D, 0x2192B, 0xA95, 0x71695, 0x6CA, 0xB55, 0x50AB5, 0x4DA, 0xA5B, 0x30A57, 0x52B, 0x8152A, 0xE95, 0x6AA, 0x615AA, 0xAB5, 0x4B6, 0x414AE, 0xA57, 0x526, 0x31D26, 0xD95, 0x70B55, 0x56A, 0x96D, 0x5095D, 0x4AD, 0xA4D, 0x41A4D, 0xD25, 0x81AA5, 0xB54, 0xB6A, 0x612DA, 0x95B, 0x49B, 0x41497, 0xA4B, 0xA164B, 0x6A5, 0x6D4, 0x615B4, 0xAB6, 0x957, 0x5092F, 0x497, 0x64B, 0x30D4A, 0xEA5, 0x80D65, 0x5AC, 0xAB6, 0x5126D, 0x92E, 0xC96, 0x41A95, 0xD4A, 0xDA5, 0x20B55, 0x56A, 0x7155B, 0x25D, 0x92D, 0x5192B, 0xA95, 0xB4A, 0x416AA, 0xAD5, 0x90AB5, 0x4BA, 0xA5B, 0x60A57, 0x52B, 0xA93, 0x40E95]
  madd[0] = 0
  madd[1] = 31
  madd[2] = 59
  madd[3] = 90
  madd[4] = 120
  madd[5] = 151
  madd[6] = 181
  madd[7] = 212
  madd[8] = 243
  madd[9] = 273
  madd[10] = 304
  madd[11] = 334

  function GetBit(m, n) {
    return (m >> n) & 1
  }

  function e2c() {
    TheDate = (arguments.length != 3) ? new Date() : new Date(arguments[0], arguments[1], arguments[2])
    let total, m, n, k
    let isEnd = false
    let tmp = TheDate.getYear()
    if (tmp < 1900)
      tmp += 1900

    total = (tmp - 1921) * 365 + Math.floor((tmp - 1921) / 4) + madd[TheDate.getMonth()] + TheDate.getDate() - 38

    if (TheDate.getYear() % 4 == 0 && TheDate.getMonth() > 1)
      total++

    for (m = 0; ; m++) {
      k = (CalendarData[m] < 0xFFF) ? 11 : 12
      for (n = k; n >= 0; n--) {
        if (total <= 29 + GetBit(CalendarData[m], n)) {
          isEnd = true
          break
        }
        total = total - 29 - GetBit(CalendarData[m], n)
      }
      if (isEnd)
        break
    }
    cYear = 1921 + m
    cMonth = k - n + 1
    cDay = total
    if (k == 12) {
      if (cMonth == Math.floor(CalendarData[m] / 0x10000) + 1)
        cMonth = 1 - cMonth

      if (cMonth > Math.floor(CalendarData[m] / 0x10000) + 1)
        cMonth--
    }
  }

  function GetcDateString() {
    let tmp1 = ''
    let tmp2 = ''
    let tmp3 = ''
    tmp1 += tgString.charAt((cYear - 4) % 10)
    tmp1 += dzString.charAt((cYear - 4) % 12)
    tmp1 += '('
    tmp1 += sx.charAt((cYear - 4) % 12)
    tmp1 += ')年 '
    if (cMonth < 1) {
      tmp2 += '(闰)'
      tmp2 += monString.charAt(-cMonth - 1)
      tmp3 += monString.charAt(-cMonth - 1)
    }
    else {
      tmp2 += monString.charAt(cMonth - 1)
      tmp3 += monString.charAt(cMonth - 1)
    }
    tmp2 += '月'
    tmp3 += '月'
    if (cDay === 1)
      tmp2 += ''

    else
      tmp2 = (cDay < 11) ? `初${numString.charAt((cDay - 1) % 10)}` : (cDay === 10) ? '初十' : ((cDay < 20) ? `十${numString.charAt((cDay - 1) % 10)}` : (cDay === 20) ? '二十' : ((cDay < 30) ? `廿${numString.charAt((cDay - 1) % 10)}` : '三十'))

    tmp3 += (cDay < 11) ? `初${numString.charAt((cDay - 1) % 10)}` : (cDay === 10) ? '初十' : ((cDay < 20) ? `十${numString.charAt((cDay - 1) % 10)}` : (cDay === 20) ? '二十' : ((cDay < 30) ? `廿${numString.charAt((cDay - 1) % 10)}` : '三十'))

    dataArr.tmp1 = tmp1
    dataArr.tmp2 = tmp2
    dataArr.tmp3 = tmp3
    dataArr.jieri = jieri
    return dataArr
  }

  function GetLunarDay(solarYear, solarMonth, solarDay) {
    // solarYear = solarYear<1900?(1900+solarYear):solarYear;
    solarMonth = (parseInt(solarMonth) > 0) ? (solarMonth - 1) : 11
    e2c(solarYear, solarMonth, solarDay)
    return GetcDateString()
  }

  function showCal(yy, mm, dd) {
    return GetLunarDay(yy, mm, dd)
  }

  return showCal(today.getFullYear(), today.getMonth() + 1, today.getDate())
}

export default showCal
